reminds me of pre-fetching. this can give the illusion of really fast web browsing, but only if you sit idly while the browser prepares for your next move. and it's different from your idea, because you're not talking about storing prefetched information on the tablet--although, that would be the way to get the fastest response, it would just take lots of memory. in your scenario, there's still going to be lag because each user action has to be sent to the computer and the computer has to send back appropriate information to the tablet before the tablet responds.

i don't know, melon. i say hit the books, fueled by the prospect of emulating an ipod touch, but you can expect to hit some serious road blocks that you probably won't be able to plow through--ever.